This chapter presents an experimental investigation into the performance of a horizontal ground heat exchanger (HGHE) for geothermal energy harvesting, utilizing a centrifugal pump for fluid circulation. The study focuses on evaluating the heat transfer capabilities of the HGHE under varying flow rates and ground temperature conditions. A detailed experimental setup was constructed, and data were collected on the inlet and outlet fluid temperatures, flow rate, and ground temperature to analyze the system's thermal performance. The results demonstrate the impact of flow rate on the heat extraction efficiency and the overall effectiveness of the HGHE. This research contributes to a deeper understanding of HGHE performance and provides valuable insights for optimizing geothermal energy-harvesting systems.
Elsevier, Next Generation Renewable Thermal Energy Harvesting, Conversion and Storage Technologies, Emerging Technologies and Materials in Thermal Engineering Series, 2026, Pages 449-484.
